[1] Hansen P B, Eskildsen L, Grubb S G et al.. Capacity upgrades of transmission systems by Raman amplification. IEEE Photonics Tech. Lett., 1997, 9(2):262～264
[2] Nielsen T N, Stentz A J, Rottwitt K et al.. 3.28-Tb/s transmission over 3×100 km of nonzero-dispersion fiber using dual C- and L-band distributed Raman amplification. IEEE Photonics Tech. Lett., 2000, 12(8):1079～1081
[3] Emori Y, Matsushita S, Namiki S. 1-THz-spaced multi-wavelength pumping for broadband Raman amplifiers. ECOC ′2000, Paper 4.4.2. 73～74
[4] Emori Y, Akasaka Y, Namiki S. Broadband lossless DCF using Raman amplification pumped by multichannel WDM laser diodes. Electron. Lett., 1998, 34(22):2145～2146
[5] Yan M, Chen J, Jiang W et al.. Automatic design scheme for optical fiber Raman amplifiers backward pumped with multiple laser diode pumps. IEEE Photonics Tech. Lett., 2001, 13(9):948～950
[6] Kidorf H, Rottwitt K, Nissov M et al.. Pump interactions in a 100-nm bandwidth Raman amplifier. IEEE Photonics Tech. Lett., 1999, 11(5):530～532
[7] Desurvire E. Erbium-Doped Fiber Amplifiers. New York: Wiley, 1994. 26～28
[8] Hodgekinson T G. Improved average power analysis technique for erbium-doped fiber amplifiers. IEEE Photonics Tech. Lett., 1992, 4(11):1273～1275
[9] Min B, Lee W J, Park N. Efficient formulation of Raman amplifier propagation equations with average power analysis. IEEE Photonics Tech. Lett., 2000, 12(11):1486～1488
[10] Namiki S, Emori Y. Ultrabroad-band Raman amplifiers pumped and gain-equalized by wavelength-division-multiplexed high-power laser diodes. IEEE J. Selected Topics in Quant. Electron., 2001,7(1):3～16
[11] Stolen R H, Ippen E P. Raman gain in glass optical waveguides. Appl. Phys. Lett., 1973, 22(6):276～278
[12] Agrawal G P. Nonlinear Fiber Optics. 2nd ed. New York: Academic, 1995. 239～286
